Zeta Volantis

Last updated • 1 min readFrom Wikipedia, The Free Encyclopedia
ζ Volantis
Volans IAU.svg
Red circle.svg
Location of ζ Volantis
Observation data
Epoch J2000.0        Equinox J2000.0
Constellation Volans
Right ascension 07h 41m 49.2590s [1]
Declination −72° 36 21.957 [1]
Apparent magnitude  (V)3.918±0.003 [2]
Characteristics
Evolutionary stage Giant star
Spectral type K0 III [3]
B−V color index 1.029±0.004 [2]
Astrometry
Radial velocity (Rv)48.5±0.14 [1]  km/s
Proper motion (μ)RA: +36.179  mas/yr [1]
Dec.: +14.816  mas/yr [1]
Parallax (π)22.4377 ± 0.0947  mas [1]
Distance 145.4 ± 0.6  ly
(44.6 ± 0.2  pc) [1]
Absolute magnitude  (MV)+0.75 [4]
Details [2]
Mass 1.224±0.155  M
Radius 10.677±0.255  R
Luminosity 60 [1]   L
Surface gravity (log g)2.82±0.09  cgs
Temperature 4,788±37  K
Metallicity [Fe/H]−0.17±0.03  dex
Age 5.1±1.515  Gyr
Other designations
ζ Vol, CPD−72°627, FK5  297, HD  63295, HIP  37504, HR  3024, SAO  256438 [5]
Database references
SIMBAD data

Zeta Volantis, Latinized from ζ Volantis, is a binary star [6] system in the southern constellation of Volans. It has an apparent visual magnitude of 3.92, [2] which is bright enough to be seen with the naked eye. Based upon parallax measurements by the Gaia spacecraft, it is approximately 145 light-years (44.6 parsecs ) from the Sun. The companion is a magnitude 9.7 star at an angular separation of 16.7 . [6] Based upon their motion through space, this system made its perihelion passage some 858,000 years ago when it came within 22 ly (6.6 pc) of the Sun. [7] It is currently moving away with a radial velocity of 48 km/s. [1]

The primary component is K-type giant star with a stellar classification of K0 III. [3] It has a derived luminosity of around 60 times that of the Sun, [1] 1.2 times the Sun's mass and is about 5.1 billion years old. At this age, it has expanded to 10.7 times the Sun's size. [2] The expanded outer envelope has an effective temperature of 4,788  K , [2] giving it the orange glow of a K-type star. [8]

Related Research Articles

<span class="mw-page-title-main">Zeta Reticuli</span> Binary star system in the constellation Reticulum

Zeta Reticuli, Latinized from ζ Reticuli, is a wide binary star system in the southern constellation of Reticulum. From the southern hemisphere the pair can be seen with the naked eye as a double star in very dark skies. Based upon parallax measurements, this system is located at a distance of about 39.3 light-years from Earth. Both stars are solar analogs that have characteristics similar to those of the Sun. They belong to the Zeta Herculis Moving Group of co-moving stars that share a common origin.

Xi<sup>2</sup> Sagittarii Star in the constellation Sagittarius

Xi2 Sagittarii, Latinized from ξ2 Sagittarii, is a star in the zodiac constellation of Sagittarius. Data collected during the Hipparcos mission suggests it is an astrometric binary, although nothing is known about the companion. It is visible to the naked eye with a combined apparent visual magnitude of +3.51. Based upon an annual parallax shift of 8.4 mas as seen from Earth, this system is located around 390 light years from the Sun.

<span class="mw-page-title-main">Gamma Volantis</span> K-type giant star in the constellation Volans

Gamma Volantis, Latinized from γ Volantis, is a wide binary star system in the southern constellation of Volans. Based upon parallax measurements, it is approximately 133 light years from Earth. It is bright enough to be seen with the naked eye and can be found around 9° to the east-southeast of the Large Magellanic Cloud.

<span class="mw-page-title-main">Eta Volantis</span> Star in the constellation Volans

Eta Volantis, Latinized from η Volantis, is a single star in the southern constellation of Volans. It has an apparent visual magnitude of 5.28, which is bright enough to be seen with the naked eye as a dim, white-hued star. Based upon parallax measurements, it is approximately 387 light years from the Sun. The star is moving further away from the Sun with a radial velocity of 20 km/s.

<span class="mw-page-title-main">Kappa Volantis</span> Quadruple star system in the constellation Volans

Kappa Volantis, Latinized from κ Volantis, is a quadruple star system in the southern constellation of Volans. The primary component has an apparent visual magnitude of 5.37, while the secondary companion is magnitude 5.65; individually, both a bright enough to be faintly visible to the naked eye. Based upon parallax measurements, the stars appear to be around 420−430 light-years from the Sun.

<span class="mw-page-title-main">23 Aquilae</span> Binary star system in the constellation Aquila

23 Aquilae is a binary star system in the equatorial constellation of Aquila. 23 Aquilae is its Flamsteed designation. It is at a distance of about 400 light-years with an apparent visual magnitude of 5.10, which is bright enough to be faintly visible to the naked eye as an orange-hued star. The brightness of the star is diminished by 0.21 in magnitude because of extinction from interstellar dust and gas. The system is moving closer to the Earth with a heliocentric radial velocity of –23 km/s.

40 Boötis is a single star located 166.5 light years away from the Sun in the northern constellation of Boötes. It is visible to the naked eye as a dim, yellow-white hued star with an apparent visual magnitude of 5.64. The star is moving away from the Earth with a heliocentric radial velocity of +12 km/s.

Alpha Horologii is a solitary orange-hued giant star and the brightest star in the constellation Horologium. It is visible to the naked eye with an apparent visual magnitude of +3.85. Based upon an parallax shift of 27.721 mas as seen from the Earth, it is located at a distance of 36 light-years. The star is moving away from the Sun with a radial velocity of +21.6 km/s.

<span class="mw-page-title-main">Delta Crateris</span> K-type giant star in the constellation Crater

Delta Crateris is a solitary star in the southern constellation of Crater. With an apparent visual magnitude of 3.56, it is the brightest star in this rather dim constellation. It has an annual parallax shift of 17.017 mas as measured from Earth, indicating Delta Crateris lies at a distance of 192 ly from the Sun.

<span class="mw-page-title-main">Alpha Reticuli</span> Star in the constellation Reticulum

Alpha Reticuli, Latinized from α Reticuli, is the Bayer designation of the brightest star in the southern circumpolar constellation of Reticulum, with an apparent visual magnitude of 3.3. This appears to be a solitary star located at a distance of 160 light-years from Earth. Although it is bright enough to be seen with the naked eye, the declination of this star means that it is best viewed from the southern hemisphere and is only readily visible south of the Tropic of Cancer.

HD 102350 is a single star in the constellation Centaurus. It has a yellow hue and is visible to the naked eye with an apparent visual magnitude of 4.11. The distance to this star is approximately 390 light years based on parallax, but it is drifting closer with a radial velocity of −3 km/s. It has an absolute magnitude of −1.51.

<span class="mw-page-title-main">Zeta Crateris</span> Probable binary star system in the constellation Crater

Zeta Crateris is a binary star system in the southern constellation of Crater. Zeta Crateris appears to be about half-way between Epsilon Corvi to the southeast and Delta Crateris to the northwest, and marks the lower left corner of the rim of the bowl. Eta Crateris lies somewhat less than half of the way from Zeta Crateris to Gamma Corvi, the bright star above, (north) of Epsilon Corvi.

γ Hydri, Latinised as Gamma Hydri, is a solitary, red-hued star in the constellation Hydrus. It has an apparent visual magnitude of 3.26, making it easily visible to the naked eye at night. Based upon an annual parallax shift of 15.24 mas as measured from Earth, the system is located about 214 light-years from the Sun.

<span class="mw-page-title-main">Zeta Indi</span> Star in the constellation Indus

Zeta Indi is a single star in the southern constellation Indus, near the northern constellation border with Microscopium. It is visible to the naked eye as a faint, orange-hued star with an apparent visual magnitude of 4.90. The star is located approximately 430 light years away from the Sun based on parallax. The radial velocity estimate for this object is poorly constrained, but it appears to be moving closer at the rate of around −5 km/s.

<span class="mw-page-title-main">10 Leonis Minoris</span> Star in the constellation Leo Minor

10 Leonis Minoris is a single variable star in the northern constellation Leo Minor, located approximately 191 light years away based on parallax. It has the variable star designation SU Leonis Minoris; 10 Leonis Minoris is the Flamsteed designation. This body is visible to the naked eye as a faint, orange-hued star with a baseline apparent visual magnitude of 4.54. It is moving closer to the Earth with a heliocentric radial velocity of −12 km/s.

<span class="mw-page-title-main">28 Monocerotis</span> Star in the constellation Monoceros

28 Monocerotis is a single star in the equatorial constellation of Monoceros. It has an orange-hue and is faintly visible to the naked eye with an apparent visual magnitude of 4.69. The distance to this star is approximately 450 light years based on parallax, and it has an absolute magnitude of −1.00. The star is drifting further away from the Sun with a radial velocity of +26.7 km/s.

<span class="mw-page-title-main">Sigma Ophiuchi</span> Star in the constellation Ophiuchus

Sigma Ophiuchi, Latinized from σ Ophiuchi, is a single, orange-hued star in the equatorial constellation Ophiuchus. Its apparent visual magnitude is 4.31, which is bright enough to be faintly visible to the naked eye. The annual parallax shift of 3.62 mas as seen from Earth provides a distance estimate of roughly 900 light years. It is moving closer to the Sun with a radial velocity of −28 km/s.

<span class="mw-page-title-main">Nu Pegasi</span> Star in the constellation Pegasus

ν Pegasi, Latinized as Nu Pegasi is a single star in the northern constellation of Pegasus. It is an orange-hued star that is faintly visible to the naked eye with an apparent visual magnitude of 4.84. The star is located approximately 261 light years away based on parallax, but is drifting closer with a radial velocity of −19 km/s.

Eta Microscopii, Latinised as η Microscopii, is a solitary star in the constellation Microscopium. It is visible to the naked eye as a dim, orange-hued star with an apparent visual magnitude of 5.53. The star is located around 910 light-years distant from the Sun based on parallax, and is drifting further away with a radial velocity of +22 km/s.

HD 46568 is a solitary star in the southern constellation Columba. It is faintly visible to the naked eye with an apparent magnitude of 5.25. Parallax measurements place the object at a distance of 284 light years and is currently receding with a heliocentric radial velocity of 39 km/s.

References

  1. 1 2 3 4 5 6 7 8 9 10 Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv: 2208.00211 . Bibcode:2023A&A...674A...1G. doi: 10.1051/0004-6361/202243940 . S2CID   244398875. Gaia DR3 record for this source at VizieR.
  2. 1 2 3 4 5 6 Gomes da Silva, J.; Santos, N. C.; Adibekyan, V.; Sousa, S. G.; Campante, T. L.; Figueira, P.; Bossini, D.; Delgado-Mena, E.; Monteiro, M. J. P. F. G.; de Laverny, P.; Recio-Blanco, A.; Lovis, C. (2021-02-01). "Stellar chromospheric activity of 1674 FGK stars from the AMBRE-HARPS sample. I. A catalogue of homogeneous chromospheric activity". Astronomy and Astrophysics. 646: A77. arXiv: 2012.10199 . Bibcode:2021A&A...646A..77G. doi:10.1051/0004-6361/202039765. ISSN   0004-6361. Zeta Volantis' database entry at VizieR.
  3. 1 2 Houk, Nancy; Cowley, A. P. (1979), Michigan catalogue of two-dimensional spectral types for the HD stars, vol. 1, Ann Arbor, Michigan: Dept. of Astronomy, University of Michigan, Bibcode:1978mcts.book.....H.
  4. Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters, 38 (5): 331, arXiv: 1108.4971 , Bibcode:2012AstL...38..331A, doi:10.1134/S1063773712050015, S2CID   119257644.
  5. "zet Vol -- High proper-motion Star", SIMBAD Astronomical Database, Centre de Données astronomiques de Strasbourg, retrieved 2016-09-05.
  6. 1 2 Eggleton, P. P.; Tokovinin, A. A. (September 2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society , 389 (2): 869–879, arXiv: 0806.2878 , Bibcode:2008MNRAS.389..869E, doi: 10.1111/j.1365-2966.2008.13596.x , S2CID   14878976.
  7. Bailer-Jones, C. A. L. (March 2015), "Close encounters of the stellar kind", Astronomy & Astrophysics, 575: 13, arXiv: 1412.3648 , Bibcode:2015A&A...575A..35B, doi:10.1051/0004-6361/201425221, S2CID   59039482, A35.
  8. "The Colour of Stars", Australia Telescope, Outreach and Education, Commonwealth Scientific and Industrial Research Organisation, December 21, 2004, archived from the original on 2013-12-03, retrieved 2012-01-16.